Table 2.

Average (Mean ± SD, Median) Absolute Error of the Corneal Limbus Diameter and Resulting Pixel Resolution Obtained From the Automatic Segmentation Algorithm on Diffuse White Light and Diffuse Blue Light Images

Illumination	Absolute Error of Corneal Limbus Diameter (Pixels)	Absolute Error of Pixel Resolution (10−3 mm)
Diffuse white light	57 ± 64, 40	0.23 ± 0.47, 0.08
Diffuse blue light	164 ± 182, 105	0.38 ± 0.57, 0.19

Six diffuse white light and three diffuse blue light images were excluded from analysis due to the corneal limbus not being segmented manually.